Expandable collet body



FIG. 1 is a perspective view of an expandable collet body of a single sided fastening system showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the expandable collet body that form no part of the claimed design. 

CLAIM The ornamental design for an expandable collet body, as shown and described. 